20+8-y=49

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Solution for 20+8-y=49 equation:


Simplifying
20 + 8 + -1y = 49

Combine like terms: 20 + 8 = 28
28 + -1y = 49

Solving
28 + -1y = 49

Solving for variable 'y'.

Move all terms containing y to the left, all other terms to the right.

Add '-28' to each side of the equation.
28 + -28 + -1y = 49 + -28

Combine like terms: 28 + -28 = 0
0 + -1y = 49 + -28
-1y = 49 + -28

Combine like terms: 49 + -28 = 21
-1y = 21

Divide each side by '-1'.
y = -21

Simplifying
y = -21

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